When NFS_CS_SIDECAR_BACKCHANNEL is set, the client needs to bind
both the forward and the back channel during recovery. Two separate
BC2S operations are needed, with different arguments.
Prepare nfs4_proc_bind_conn_to_session() by creating a complete arg
struct for the BIND_CONN_TO_SESSION XDR encoder.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
fs/nfs/nfs4proc.c | 6 +++++-
fs/nfs/nfs4xdr.c | 16 +++++++++-------
include/linux/nfs_xdr.h | 6 ++++++
3 files changed, 20 insertions(+), 8 deletions(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a1243e7..9a8ffb7 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6578,11 +6578,15 @@ nfs41_same_server_scope(struct nfs41_server_scope *a,
int nfs4_proc_bind_conn_to_session(struct nfs_client *clp, struct rpc_cred *cred)
{
int status;
+ struct nfs41_bind_conn_to_session_args args = {
+ .client = clp,
+ .dir = NFS4_CDFC4_BACK_OR_BOTH,
+ };
struct nfs41_bind_conn_to_session_res res;
struct rpc_message msg = {
.rpc_proc =
&nfs4_procedures[NFSPROC4_CLNT_BIND_CONN_TO_SESSION],
- .rpc_argp = clp,
+ .rpc_argp = &args,
.rpc_resp = &res,
.rpc_cred = cred,
};
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e13b59d..6dfdd14 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1733,17 +1733,19 @@ static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, stru
#if defined(CONFIG_NFS_V4_1)
/* NFSv4.1 operations */
static void encode_bind_conn_to_session(struct xdr_stream *xdr,
- struct nfs4_session *session,
- struct compound_hdr *hdr)
+ struct nfs41_bind_conn_to_session_args *args,
+ struct compound_hdr *hdr)
{
+ struct nfs4_session *session = args->client->cl_session;
__be32 *p;
encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION,
decode_bind_conn_to_session_maxsz, hdr);
encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
+
p = xdr_reserve_space(xdr, 8);
- *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH);
- *p = 0; /* use_conn_in_rdma_mode = False */
+ *p++ = cpu_to_be32(args->dir);
+ *p = args->use_conn_in_rdma_mode ? xdr_one : xdr_zero;
}
static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
@@ -2766,14 +2768,14 @@ static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_client *clp)
+ struct nfs41_bind_conn_to_session_args *args)
{
struct compound_hdr hdr = {
- .minorversion = clp->cl_mvops->minor_version,
+ .minorversion = args->client->cl_mvops->minor_version,
};
encode_compound_hdr(xdr, req, &hdr);
- encode_bind_conn_to_session(xdr, clp->cl_session, &hdr);
+ encode_bind_conn_to_session(xdr, args, &hdr);
encode_nops(&hdr);
}
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 0040629..af17763 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1140,6 +1140,12 @@ struct nfs41_state_protection {
struct nfs4_op_map allow;
};
+struct nfs41_bind_conn_to_session_args {
+ struct nfs_client *client;
+ u32 dir;
+ bool use_conn_in_rdma_mode;
+};
+
#define NFS4_EXCHANGE_ID_LEN (48)
struct nfs41_exchange_id_args {
struct nfs_client *client;
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
